Update Vagrantfile to Vagrant API v2
Update Vagrantfile to Vagrant API v2

Required for Vagrant >=1.1

Should be backwards compatible with older versions
http://docs.vagrantup.com/v2/installation/backwards-compatibility.html
nzherald/alaveteli,4bic/alaveteli,codeforcroatia/alaveteli,petterreinholdtsen/alaveteli,petterreinholdtsen/alaveteli,andreicristianpetcu/alaveteli_old,nzherald/alaveteli,Br3nda/alaveteli,codeforcroatia/alaveteli,TEDICpy/QueremoSaber,4bic/alaveteli,TEDICpy/QueremoSaber,datauy/alaveteli,andreicristianpetcu/alaveteli_old,Br3nda/alaveteli,Br3nda/alaveteli,Br3nda/alaveteli,Br3nda/alaveteli,4bic/alaveteli,nzherald/alaveteli,codeforcroatia/alaveteli,andreicristianpetcu/alaveteli,TEDICpy/QueremoSaber,datauy/alaveteli,4bic/alaveteli,petterreinholdtsen/alaveteli,andreicristianpetcu/alaveteli,4bic/alaveteli,petterreinholdtsen/alaveteli,codeforcroatia/alaveteli,andreicristianpetcu/alaveteli_old,andreicristianpetcu/alaveteli,nzherald/alaveteli,nzherald/alaveteli,andreicristianpetcu/alaveteli_old,andreicristianpetcu/alaveteli,andreicristianpetcu/alaveteli_old,TEDICpy/QueremoSaber,andreicristianpetcu/alaveteli,datauy/alaveteli,petterreinholdtsen/alaveteli,TEDICpy/QueremoSaber